/
lte-ue-rrc.cc
4138 lines (3628 loc) · 152 KB
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lte-ue-rrc.cc
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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2011, 2012 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
* Copyright (c) 2016, 2018, University of Padova, Dep. of Information Engineering, SIGNET lab
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Nicola Baldo <nbaldo@cttc.es>
* Budiarto Herman <budiarto.herman@magister.fi>
* Modified by:
* Danilo Abrignani <danilo.abrignani@unibo.it> (Carrier Aggregation - GSoC 2015)
* Biljana Bojovic <biljana.bojovic@cttc.es> (Carrier Aggregation)
* Modified by: Michele Polese <michele.polese@gmail.com>
* Dual Connectivity functionalities
* Modified by: Tommaso Zugno <tommasozugno@gmail.com>
* Integration of Carrier Aggregation for the mmWave module
*/
#include "lte-ue-rrc.h"
#include <ns3/fatal-error.h>
#include <ns3/log.h>
#include <ns3/object-map.h>
#include <ns3/object-factory.h>
#include <ns3/simulator.h>
#include <ns3/lte-rlc.h>
#include <ns3/lte-rlc-tm.h>
#include <ns3/lte-rlc-um.h>
#include <ns3/lte-rlc-am.h>
#include <ns3/lte-pdcp.h>
#include <ns3/mc-ue-pdcp.h>
#include <ns3/lte-radio-bearer-info.h>
#include <ns3/lte-ue-mac.h>
#include <ns3/lte-rlc-am-header.h>
#include <ns3/lte-rlc-sdu-status-tag.h>
#include <ns3/lte-pdcp-header.h>
#include <ns3/lte-rlc-um-lowlat.h>
#include "ns3/lte-pdcp-tag.h"
#include <ns3/lte-rlc-sap.h>
#include <cmath>
namespace ns3 {
NS_LOG_COMPONENT_DEFINE ("LteUeRrc");
/////////////////////////////
// CMAC SAP forwarder
/////////////////////////////
/// UeMemberLteUeCmacSapUser class
class UeMemberLteUeCmacSapUser : public LteUeCmacSapUser
{
public:
/**
* Constructor
*
* \param rrc the RRC class
*/
UeMemberLteUeCmacSapUser (LteUeRrc* rrc);
virtual void SetTemporaryCellRnti (uint16_t rnti);
virtual void NotifyRandomAccessSuccessful ();
virtual void NotifyRandomAccessFailed ();
private:
LteUeRrc* m_rrc; ///< the RRC class
};
UeMemberLteUeCmacSapUser::UeMemberLteUeCmacSapUser (LteUeRrc* rrc)
: m_rrc (rrc)
{
}
void
UeMemberLteUeCmacSapUser::SetTemporaryCellRnti (uint16_t rnti)
{
m_rrc->DoSetTemporaryCellRnti (rnti);
}
void
UeMemberLteUeCmacSapUser::NotifyRandomAccessSuccessful ()
{
m_rrc->DoNotifyRandomAccessSuccessful ();
}
void
UeMemberLteUeCmacSapUser::NotifyRandomAccessFailed ()
{
m_rrc->DoNotifyRandomAccessFailed ();
}
/// Map each of UE RRC states to its string representation.
static const std::string g_ueRrcStateName[LteUeRrc::NUM_STATES] =
{
"IDLE_START",
"IDLE_CELL_SEARCH",
"IDLE_WAIT_MIB_SIB1",
"IDLE_WAIT_MIB",
"IDLE_WAIT_SIB1",
"IDLE_CAMPED_NORMALLY",
"IDLE_WAIT_SIB2",
"IDLE_RANDOM_ACCESS",
"IDLE_CONNECTING",
"CONNECTED_NORMALLY",
"CONNECTED_HANDOVER",
"CONNECTED_PHY_PROBLEM",
"CONNECTED_REESTABLISHING"
};
/**
* \param s The UE RRC state.
* \return The string representation of the given state.
*/
static const std::string & ToString (LteUeRrc::State s)
{
return g_ueRrcStateName[s];
}
/////////////////////////////
// ue RRC methods
/////////////////////////////
NS_OBJECT_ENSURE_REGISTERED (LteUeRrc);
LteUeRrc::LteUeRrc ()
: m_cmacSapProvider (0),
m_rrcSapUser (0),
m_macSapProvider (0),
m_asSapUser (0),
m_ccmRrcSapProvider (0),
m_state (IDLE_START),
m_imsi (0),
m_rnti (0),
m_cellId (0),
m_useRlcSm (true),
m_connectionPending (false),
m_hasReceivedMib (false),
m_hasReceivedSib1 (false),
m_hasReceivedSib2 (false),
m_csgWhiteList (0),
m_ncRaStarted (true),
m_numberOfComponentCarriers (MIN_NO_CC)
{
NS_LOG_FUNCTION (this);
m_cphySapUser.push_back (new MemberLteUeCphySapUser<LteUeRrc> (this));
m_cmacSapUser.push_back (new UeMemberLteUeCmacSapUser (this));
m_cphySapProvider.push_back(0);
m_cmacSapProvider.push_back(0);
m_lteCmacSapProvider.push_back(0);
m_mmWaveCmacSapProvider.push_back(0);
m_rrcSapProvider = new MemberLteUeRrcSapProvider<LteUeRrc> (this);
m_drbPdcpSapUser = new LtePdcpSpecificLtePdcpSapUser<LteUeRrc> (this);
m_asSapProvider = new MemberLteAsSapProvider<LteUeRrc> (this);
m_ccmRrcSapUser = new MemberLteUeCcmRrcSapUser<LteUeRrc> (this);
}
LteUeRrc::~LteUeRrc ()
{
NS_LOG_FUNCTION (this);
}
void
LteUeRrc::DoDispose ()
{
NS_LOG_FUNCTION (this);
for ( uint16_t i = 0; i < m_numberOfComponentCarriers; i++)
{
delete m_cphySapUser.at(i);
delete m_cmacSapUser.at(i);
}
m_cphySapUser.clear ();
m_cmacSapUser.clear ();
delete m_rrcSapProvider;
delete m_drbPdcpSapUser;
delete m_asSapProvider;
delete m_ccmRrcSapUser;
m_cphySapProvider.erase(m_cphySapProvider.begin(), m_cphySapProvider.end());
m_cphySapProvider.clear();
m_cmacSapProvider.erase(m_cmacSapProvider.begin(), m_cmacSapProvider.end());
m_cmacSapProvider.clear();
m_drbMap.clear ();
m_rlcMap.clear ();
}
TypeId
LteUeRrc::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::LteUeRrc")
.SetParent<Object> ()
.SetGroupName ("Lte")
.AddConstructor<LteUeRrc> ()
.AddAttribute ("DataRadioBearerMap", "List of UE RadioBearerInfo for Data Radio Bearers by LCID.",
ObjectMapValue (),
MakeObjectMapAccessor (&LteUeRrc::m_drbMap),
MakeObjectMapChecker<LteDataRadioBearerInfo> ())
.AddAttribute ("DataRadioRlcMap", "List of UE RLC for Secondary Connection by LCID.",
ObjectMapValue (),
MakeObjectMapAccessor (&LteUeRrc::m_rlcMap),
MakeObjectMapChecker<RlcBearerInfo> ())
.AddAttribute ("Srb0", "SignalingRadioBearerInfo for SRB0",
PointerValue (),
MakePointerAccessor (&LteUeRrc::m_srb0),
MakePointerChecker<LteSignalingRadioBearerInfo> ())
.AddAttribute ("Srb1", "SignalingRadioBearerInfo for SRB1",
PointerValue (),
MakePointerAccessor (&LteUeRrc::m_srb1),
MakePointerChecker<LteSignalingRadioBearerInfo> ())
.AddAttribute ("CellId",
"Serving cell identifier",
UintegerValue (0), // unused, read-only attribute
MakeUintegerAccessor (&LteUeRrc::GetCellId),
MakeUintegerChecker<uint16_t> ())
.AddAttribute ("C-RNTI",
"Cell Radio Network Temporary Identifier",
UintegerValue (0), // unused, read-only attribute
MakeUintegerAccessor (&LteUeRrc::GetRnti),
MakeUintegerChecker<uint16_t> ())
.AddAttribute ("T300",
"Timer for the RRC Connection Establishment procedure "
"(i.e., the procedure is deemed as failed if it takes longer than this)",
TimeValue (MilliSeconds (100)),
MakeTimeAccessor (&LteUeRrc::m_t300),
MakeTimeChecker ())
.AddTraceSource ("MibReceived",
"trace fired upon reception of Master Information Block",
MakeTraceSourceAccessor (&LteUeRrc::m_mibReceivedTrace),
"ns3::LteUeRrc::MibSibHandoverTracedCallback")
.AddTraceSource ("Sib1Received",
"trace fired upon reception of System Information Block Type 1",
MakeTraceSourceAccessor (&LteUeRrc::m_sib1ReceivedTrace),
"ns3::LteUeRrc::MibSibHandoverTracedCallback")
.AddTraceSource ("Sib2Received",
"trace fired upon reception of System Information Block Type 2",
MakeTraceSourceAccessor (&LteUeRrc::m_sib2ReceivedTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("StateTransition",
"trace fired upon every UE RRC state transition",
MakeTraceSourceAccessor (&LteUeRrc::m_stateTransitionTrace),
"ns3::LteUeRrc::StateTracedCallback")
.AddTraceSource ("InitialCellSelectionEndOk",
"trace fired upon successful initial cell selection procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_initialCellSelectionEndOkTrace),
"ns3::LteUeRrc::CellSelectionTracedCallback")
.AddTraceSource ("InitialCellSelectionEndError",
"trace fired upon failed initial cell selection procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_initialCellSelectionEndErrorTrace),
"ns3::LteUeRrc::CellSelectionTracedCallback")
.AddTraceSource ("RandomAccessSuccessful",
"trace fired upon successful completion of the random access procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_randomAccessSuccessfulTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("RandomAccessError",
"trace fired upon failure of the random access procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_randomAccessErrorTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("ConnectionEstablished",
"trace fired upon successful RRC connection establishment",
MakeTraceSourceAccessor (&LteUeRrc::m_connectionEstablishedTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("ConnectionTimeout",
"trace fired upon timeout RRC connection establishment because of T300",
MakeTraceSourceAccessor (&LteUeRrc::m_connectionTimeoutTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("ConnectionReconfiguration",
"trace fired upon RRC connection reconfiguration",
MakeTraceSourceAccessor (&LteUeRrc::m_connectionReconfigurationTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("HandoverStart",
"trace fired upon start of a handover procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_handoverStartTrace),
"ns3::LteUeRrc::MibSibHandoverTracedCallback")
.AddTraceSource ("HandoverEndOk",
"trace fired upon successful termination of a handover procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_handoverEndOkTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("HandoverEndError",
"trace fired upon failure of a handover procedure",
MakeTraceSourceAccessor (&LteUeRrc::m_handoverEndErrorTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("SCarrierConfigured",
"trace fired after configuring secondary carriers",
MakeTraceSourceAccessor (&LteUeRrc::m_sCarrierConfiguredTrace),
"ns3::LteUeRrc::SCellConfiguredTracedCallback")
.AddTraceSource ("SwitchToLte",
"trace fired upon switching to LTE RAT",
MakeTraceSourceAccessor (&LteUeRrc::m_switchToLteTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddTraceSource ("SwitchToMmWave",
"trace fired upon switching to MmWave RAT",
MakeTraceSourceAccessor (&LteUeRrc::m_switchToMmWaveTrace),
"ns3::LteUeRrc::ImsiCidRntiTracedCallback")
.AddAttribute ("SecondaryRRC",
"True if this is the RRC in charge of the secondary cell (MmWaveCell) for a MC device",
BooleanValue (false),
MakeBooleanAccessor (&LteUeRrc::m_isSecondaryRRC),
MakeBooleanChecker ())
.AddAttribute ("InterRatHoCapable",
"True if this RRC supports hard handover between LTE and MmWave",
BooleanValue (false),
MakeBooleanAccessor (&LteUeRrc::m_interRatHoCapable),
MakeBooleanChecker ())
;
return tid;
}
void
LteUeRrc::SetLteUeCphySapProvider (LteUeCphySapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_cphySapProvider.at(0) = s;
m_lteCphySapProvider.at(0) = s;
}
void
LteUeRrc::SetLteUeCphySapProvider (LteUeCphySapProvider * s, uint8_t index)
{
NS_LOG_FUNCTION (this << s);
m_cphySapProvider.at(index) = s;
}
void
LteUeRrc::SetMmWaveUeCphySapProvider (LteUeCphySapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_mmWaveCphySapProvider.at(0) = s;
}
LteUeCphySapUser*
LteUeRrc::GetLteUeCphySapUser ()
{
NS_LOG_FUNCTION (this);
return m_cphySapUser.at(0);
}
LteUeCphySapUser*
LteUeRrc::GetLteUeCphySapUser (uint8_t index)
{
NS_LOG_FUNCTION (this);
return m_cphySapUser.at(index);
}
void
LteUeRrc::SetLteUeCmacSapProvider (LteUeCmacSapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_cmacSapProvider.at (0) = s;
m_lteCmacSapProvider.at (0) = s;
}
void
LteUeRrc::SetLteUeCmacSapProvider (LteUeCmacSapProvider * s, uint8_t index)
{
NS_LOG_FUNCTION (this << s);
m_cmacSapProvider.at (index) = s;
m_lteCmacSapProvider.at (index) = s;
}
void
LteUeRrc::SetMmWaveUeCmacSapProvider (LteUeCmacSapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_mmWaveCmacSapProvider.at(0) = s;
}
void
LteUeRrc::SetMmWaveUeCmacSapProvider (LteUeCmacSapProvider * s, uint8_t index)
{
NS_LOG_FUNCTION (this << s);
m_mmWaveCmacSapProvider.at(index) = s;
}
LteUeCmacSapUser*
LteUeRrc::GetLteUeCmacSapUser ()
{
NS_LOG_FUNCTION (this);
return m_cmacSapUser.at (0);
}
LteUeCmacSapUser*
LteUeRrc::GetLteUeCmacSapUser (uint8_t index)
{
NS_LOG_FUNCTION (this);
return m_cmacSapUser.at (index);
}
void
LteUeRrc::SetLteUeRrcSapUser (LteUeRrcSapUser * s)
{
NS_LOG_FUNCTION (this << s);
m_rrcSapUser = s;
}
LteUeRrcSapProvider*
LteUeRrc::GetLteUeRrcSapProvider ()
{
NS_LOG_FUNCTION (this);
return m_rrcSapProvider;
}
void
LteUeRrc::SetLteMacSapProvider (LteMacSapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_macSapProvider = s;
m_lteMacSapProvider = s;
}
void
LteUeRrc::SetMmWaveMacSapProvider (LteMacSapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_mmWaveMacSapProvider = s;
}
void
LteUeRrc::SetLteCcmRrcSapProvider (LteUeCcmRrcSapProvider * s)
{
NS_LOG_FUNCTION (this << s);
m_ccmRrcSapProvider = s;
}
LteUeCcmRrcSapUser*
LteUeRrc::GetLteCcmRrcSapUser ()
{
NS_LOG_FUNCTION (this);
return m_ccmRrcSapUser;
}
void
LteUeRrc::SetAsSapUser (LteAsSapUser* s)
{
m_asSapUser = s;
}
LteAsSapProvider*
LteUeRrc::GetAsSapProvider ()
{
return m_asSapProvider;
}
void
LteUeRrc::SetImsi (uint64_t imsi)
{
NS_LOG_FUNCTION (this << imsi);
m_imsi = imsi;
}
uint64_t
LteUeRrc::GetImsi (void) const
{
return m_imsi;
}
uint16_t
LteUeRrc::GetRnti () const
{
NS_LOG_FUNCTION (this);
return m_rnti;
}
uint16_t
LteUeRrc::GetCellId () const
{
NS_LOG_FUNCTION (this);
return m_cellId;
}
void
LteUeRrc::AddMmWaveCellId(uint16_t cellId)
{
NS_LOG_FUNCTION(this);
NS_ASSERT_MSG(m_interRatHoCapable, "Trying to setup unnecessary information on a non interRatHoCapable device");
if(m_isMmWaveCellMap.find(cellId) == m_isMmWaveCellMap.end())
{
m_isMmWaveCellMap.insert(std::pair<uint16_t, bool> (cellId, true));
}
else // modify
{
m_isMmWaveCellMap.find(cellId)->second = true;
}
}
void
LteUeRrc::AddLteCellId(uint16_t cellId)
{
NS_LOG_FUNCTION(this);
NS_ASSERT_MSG(m_interRatHoCapable, "Trying to setup unnecessary information on a non interRatHoCapable device");
if(m_isMmWaveCellMap.find(cellId) == m_isMmWaveCellMap.end())
{
m_isMmWaveCellMap.insert(std::pair<uint16_t, bool> (cellId, false));
}
else // modify
{
m_isMmWaveCellMap.find(cellId)->second = false;
}
}
bool
LteUeRrc::SwitchLowerLayerProviders (uint16_t cellId)
{
if(m_isMmWaveCellMap.find(cellId) != m_isMmWaveCellMap.end())
{
if(m_isMmWaveCellMap.find(cellId)->second)
{
NS_LOG_INFO("Switch SAP to MmWave");
//NS_LOG_LOGIC("Before switch " << m_cphySapProvider << m_cmacSapProvider << m_macSapProvider);
m_cphySapProvider = m_mmWaveCphySapProvider;
m_cmacSapProvider = m_mmWaveCmacSapProvider;
m_macSapProvider = m_mmWaveMacSapProvider;
m_hasReceivedSib2 = false;
//NS_LOG_LOGIC("After switch " << m_cphySapProvider << m_cmacSapProvider << m_macSapProvider);
return true;
}
else
{
NS_LOG_INFO("Switch SAP to LTE");
//NS_LOG_LOGIC("Before switch " << m_cphySapProvider << m_cmacSapProvider << m_macSapProvider);
m_cphySapProvider = m_lteCphySapProvider;
m_cmacSapProvider = m_lteCmacSapProvider;
m_macSapProvider = m_lteMacSapProvider;
m_hasReceivedSib2 = false;
//NS_LOG_LOGIC("After switch " << m_cphySapProvider << m_cmacSapProvider << m_macSapProvider);
return true;
}
}
else
{
if(m_interRatHoCapable)
{
NS_FATAL_ERROR("Unkown cell, set it up in the helper!");
}
else
{
// do nothing, always use the ones set at the beginning
return false;
}
}
}
uint8_t
LteUeRrc::GetUlBandwidth () const
{
NS_LOG_FUNCTION (this);
return m_ulBandwidth;
}
uint8_t
LteUeRrc::GetDlBandwidth () const
{
NS_LOG_FUNCTION (this);
return m_dlBandwidth;
}
uint32_t
LteUeRrc::GetDlEarfcn () const
{
return m_dlEarfcn;
}
uint32_t
LteUeRrc::GetUlEarfcn () const
{
NS_LOG_FUNCTION (this);
return m_ulEarfcn;
}
LteUeRrc::State
LteUeRrc::GetState (void) const
{
NS_LOG_FUNCTION (this);
return m_state;
}
void
LteUeRrc::SetUseRlcSm (bool val)
{
NS_LOG_FUNCTION (this);
m_useRlcSm = val;
}
void
LteUeRrc::DoInitialize (void)
{
NS_LOG_FUNCTION (this);
// setup the UE side of SRB0
uint8_t lcid = 0;
Ptr<LteRlc> rlc = CreateObject<LteRlcTm> ()->GetObject<LteRlc> ();
rlc->SetLteMacSapProvider (m_macSapProvider);
rlc->SetRnti (m_rnti);
rlc->SetLcId (lcid);
m_srb0 = CreateObject<LteSignalingRadioBearerInfo> ();
m_srb0->m_rlc = rlc;
m_srb0->m_srbIdentity = 0;
LteUeRrcSapUser::SetupParameters ueParams;
ueParams.srb0SapProvider = m_srb0->m_rlc->GetLteRlcSapProvider ();
ueParams.srb1SapProvider = 0;
m_rrcSapUser->Setup (ueParams);
// CCCH (LCID 0) is pre-configured, here is the hardcoded configuration:
LteUeCmacSapProvider::LogicalChannelConfig lcConfig;
lcConfig.priority = 0; // highest priority
lcConfig.prioritizedBitRateKbps = 65535; // maximum
lcConfig.bucketSizeDurationMs = 65535; // maximum
lcConfig.logicalChannelGroup = 0; // all SRBs mapped to LCG 0
if(m_interRatHoCapable)
{
LteMacSapUser* msu = m_ccmRrcSapProvider->ConfigureSignalBearer(lcid, lcConfig, rlc->GetLteMacSapUser ());
m_mmWaveCmacSapProvider.at(0)->AddLc (lcid, lcConfig, msu);
m_lteCmacSapProvider.at(0)->AddLc (lcid, lcConfig, msu);
}
else
{
LteMacSapUser* msu = m_ccmRrcSapProvider->ConfigureSignalBearer(lcid, lcConfig, rlc->GetLteMacSapUser ());
m_cmacSapProvider.at(0)->AddLc (lcid, lcConfig, msu);
}
}
void
LteUeRrc::InitializeSap (void)
{
if (m_numberOfComponentCarriers < MIN_NO_CC || m_numberOfComponentCarriers > MAX_NO_CC)
{
// this check is needed in order to maintain backward compatibility with scripts and tests
// if case lte-helper is not used (like in several tests) the m_numberOfComponentCarriers
// is not set and then an error is raised
// In this case m_numberOfComponentCarriers is set to 1
m_numberOfComponentCarriers = MIN_NO_CC;
}
if (m_numberOfComponentCarriers > MIN_NO_CC )
{
for ( uint16_t i = 1; i < m_numberOfComponentCarriers; i++)
{
m_cphySapUser.push_back(new MemberLteUeCphySapUser<LteUeRrc> (this));
m_cmacSapUser.push_back(new UeMemberLteUeCmacSapUser (this));
m_cphySapProvider.push_back(0);
m_cmacSapProvider.push_back(0);
m_lteCmacSapProvider.push_back(0);
}
}
// this is executed if the UE is MC
if (m_numberOfMmWaveComponentCarriers > MIN_NO_MMW_CC )
{
for ( uint16_t i = 1; i < m_numberOfMmWaveComponentCarriers; i++)
{
m_mmWaveCmacSapProvider.push_back(0);
}
}
}
void
LteUeRrc::DoSendData (Ptr<Packet> packet, uint8_t bid)
{
NS_LOG_FUNCTION (this << packet);
uint8_t drbid = Bid2Drbid (bid);
if (drbid != 0)
{
std::map<uint8_t, Ptr<LteDataRadioBearerInfo> >::iterator it = m_drbMap.find (drbid);
NS_ASSERT_MSG (it != m_drbMap.end (), "could not find bearer with drbid == " << drbid);
LtePdcpSapProvider::TransmitPdcpSduParameters params;
params.pdcpSdu = packet;
params.rnti = m_rnti;
params.lcid = it->second->m_logicalChannelIdentity;
NS_LOG_LOGIC (this << " RNTI=" << m_rnti << " sending packet " << packet
<< " on DRBID " << (uint32_t) drbid
<< " (LCID " << (uint32_t) params.lcid << ")"
<< " (" << packet->GetSize () << " bytes)");
it->second->m_pdcp->GetLtePdcpSapProvider ()->TransmitPdcpSdu (params);
}
}
void
LteUeRrc::DoDisconnect ()
{
NS_LOG_FUNCTION (this);
switch (m_state)
{
case IDLE_START:
case IDLE_CELL_SEARCH:
case IDLE_WAIT_MIB_SIB1:
case IDLE_WAIT_MIB:
case IDLE_WAIT_SIB1:
case IDLE_CAMPED_NORMALLY:
NS_LOG_INFO ("already disconnected");
break;
case IDLE_WAIT_SIB2:
case IDLE_CONNECTING:
NS_FATAL_ERROR ("cannot abort connection setup procedure");
break;
case CONNECTED_NORMALLY:
case CONNECTED_HANDOVER:
case CONNECTED_PHY_PROBLEM:
case CONNECTED_REESTABLISHING:
LeaveConnectedMode ();
break;
default: // i.e. IDLE_RANDOM_ACCESS
NS_FATAL_ERROR ("method unexpected in state " << ToString (m_state));
break;
}
}
void
LteUeRrc::DoNotifySecondaryCellConnected(uint16_t mmWaveRnti, uint16_t mmWaveCellId)
{
m_mmWaveCellId = mmWaveCellId;
m_mmWaveRnti = mmWaveRnti;
NS_LOG_FUNCTION(this);
m_rrcSapUser->SendNotifySecondaryCellConnected(mmWaveRnti, mmWaveCellId);
}
void
LteUeRrc::DoReceivePdcpSdu (LtePdcpSapUser::ReceivePdcpSduParameters params)
{
NS_LOG_FUNCTION (this);
m_asSapUser->RecvData (params.pdcpSdu);
}
void
LteUeRrc::DoSetTemporaryCellRnti (uint16_t rnti)
{
NS_LOG_FUNCTION (this << rnti);
m_rnti = rnti;
m_srb0->m_rlc->SetRnti (m_rnti);
m_cphySapProvider.at(0)->SetRnti (m_rnti);
}
void
LteUeRrc::DoNotifyRadioLinkFailure (double lastSinrValue)
{
NS_LOG_DEBUG("Rlf");
}
void
LteUeRrc::DoNotifyRandomAccessSuccessful ()
{
NS_LOG_FUNCTION (this << m_imsi << ToString (m_state));
m_randomAccessSuccessfulTrace (m_imsi, m_cellId, m_rnti);
switch (m_state)
{
case IDLE_RANDOM_ACCESS:
{
// we just received a RAR with a T-C-RNTI and an UL grant
// send RRC connection request as message 3 of the random access procedure
SwitchToState (IDLE_CONNECTING);
LteRrcSap::RrcConnectionRequest msg;
msg.ueIdentity = m_imsi;
msg.isMc = m_isSecondaryRRC;
m_rrcSapUser->SendRrcConnectionRequest (msg);
m_connectionTimeout = Simulator::Schedule (m_t300,
&LteUeRrc::ConnectionTimeout,
this);
}
break;
case CONNECTED_HANDOVER:
{
LteRrcSap::RrcConnectionReconfigurationCompleted msg;
msg.rrcTransactionIdentifier = m_lastRrcTransactionIdentifier;
m_rrcSapUser->SendRrcConnectionReconfigurationCompleted (msg);
// 3GPP TS 36.331 section 5.5.6.1 Measurements related actions upon handover
std::map<uint8_t, LteRrcSap::MeasIdToAddMod>::iterator measIdIt;
for (measIdIt = m_varMeasConfig.measIdList.begin ();
measIdIt != m_varMeasConfig.measIdList.end ();
++measIdIt)
{
VarMeasReportListClear (measIdIt->second.measId);
}
SwitchToState (CONNECTED_NORMALLY);
m_handoverEndOkTrace (m_imsi, m_cellId, m_rnti);
if(m_isSecondaryRRC) // an handover for secondary cells has happened.
// this trace is used to keep a consistent trace of the cell to which the UE is connected
{
NS_LOG_UNCOND("DoNotifyRandomAccessSuccessful at time " << Simulator::Now().GetSeconds());
m_switchToMmWaveTrace(m_imsi, m_cellId, m_rnti);
}
}
break;
default:
NS_FATAL_ERROR ("unexpected event in state " << ToString (m_state));
break;
}
}
void
LteUeRrc::DoNotifyRandomAccessFailed ()
{
NS_LOG_FUNCTION (this << m_imsi << ToString (m_state));
m_randomAccessErrorTrace (m_imsi, m_cellId, m_rnti);
switch (m_state)
{
case IDLE_RANDOM_ACCESS:
{
SwitchToState (IDLE_CAMPED_NORMALLY);
m_asSapUser->NotifyConnectionFailed ();
}
break;
case CONNECTED_HANDOVER:
{
m_handoverEndErrorTrace (m_imsi, m_cellId, m_rnti);
/**
* \todo After a handover failure because of a random access failure,
* send an RRC Connection Re-establishment and switch to
* CONNECTED_REESTABLISHING state.
*/
}
break;
default:
NS_FATAL_ERROR ("unexpected event in state " << ToString (m_state));
break;
}
}
void
LteUeRrc::DoSetCsgWhiteList (uint32_t csgId)
{
NS_LOG_FUNCTION (this << m_imsi << csgId);
m_csgWhiteList = csgId;
}
void
LteUeRrc::DoStartCellSelection (uint32_t dlEarfcn)
{
NS_LOG_FUNCTION (this << m_imsi << dlEarfcn);
NS_ASSERT_MSG (m_state == IDLE_START,
"cannot start cell selection from state " << ToString (m_state));
m_dlEarfcn = dlEarfcn;
m_cphySapProvider.at(0)->StartCellSearch (dlEarfcn);
SwitchToState (IDLE_CELL_SEARCH);
}
void
LteUeRrc::DoForceCampedOnEnb (uint16_t cellId, uint32_t dlEarfcn)
{
NS_LOG_FUNCTION (this << m_imsi << cellId << dlEarfcn);
switch (m_state)
{
case IDLE_START:
m_cellId = cellId;
SwitchLowerLayerProviders(m_cellId); // for InterRat HO
m_dlEarfcn = dlEarfcn;
m_cphySapProvider.at(0)->SynchronizeWithEnb (m_cellId, m_dlEarfcn);
SwitchToState (IDLE_WAIT_MIB);
break;
case IDLE_CELL_SEARCH:
case IDLE_WAIT_MIB_SIB1:
case IDLE_WAIT_SIB1:
NS_FATAL_ERROR ("cannot abort cell selection " << ToString (m_state));
break;
case IDLE_WAIT_MIB:
NS_LOG_INFO ("already forced to camp to cell " << m_cellId);
break;
case IDLE_CAMPED_NORMALLY:
case IDLE_WAIT_SIB2:
case IDLE_RANDOM_ACCESS:
case IDLE_CONNECTING:
NS_LOG_INFO ("already camped to cell " << m_cellId);
break;
case CONNECTED_NORMALLY:
case CONNECTED_HANDOVER:
case CONNECTED_PHY_PROBLEM:
case CONNECTED_REESTABLISHING:
NS_LOG_INFO ("already connected to cell " << m_cellId);
break;
default:
NS_FATAL_ERROR ("unexpected event in state " << ToString (m_state));
break;
}
}
void
LteUeRrc::DoConnect ()
{
NS_LOG_FUNCTION (this << m_imsi);
switch (m_state)
{
case IDLE_START:
case IDLE_CELL_SEARCH:
case IDLE_WAIT_MIB_SIB1:
case IDLE_WAIT_SIB1:
case IDLE_WAIT_MIB:
m_connectionPending = true;
break;
case IDLE_CAMPED_NORMALLY:
m_connectionPending = true;
SwitchToState (IDLE_WAIT_SIB2);
break;
case IDLE_WAIT_SIB2:
case IDLE_RANDOM_ACCESS:
case IDLE_CONNECTING:
NS_LOG_INFO ("already connecting");
break;
case CONNECTED_NORMALLY:
case CONNECTED_REESTABLISHING:
case CONNECTED_HANDOVER:
NS_LOG_INFO ("already connected");
break;
default:
NS_FATAL_ERROR ("unexpected event in state " << ToString (m_state));
break;
}
}
// CPHY SAP methods
void
LteUeRrc::DoRecvMasterInformationBlock (uint16_t cellId,
LteRrcSap::MasterInformationBlock msg)
{
m_dlBandwidth = msg.dlBandwidth;
m_cphySapProvider.at(0)->SetDlBandwidth (msg.dlBandwidth);
m_hasReceivedMib = true;
m_mibReceivedTrace (m_imsi, m_cellId, m_rnti, cellId);
switch (m_state)
{
case IDLE_WAIT_MIB:
// manual attachment
SwitchToState (IDLE_CAMPED_NORMALLY);
break;
case IDLE_WAIT_MIB_SIB1:
// automatic attachment from Idle mode cell selection
SwitchToState (IDLE_WAIT_SIB1);
break;
default:
// do nothing extra
break;
}
}
void
LteUeRrc::DoRecvSystemInformationBlockType1 (uint16_t cellId,
LteRrcSap::SystemInformationBlockType1 msg)
{